gestation is a complex process that involves many details and stages. one of these stages is the formation of the gestational sac - the first structure visible on the ultrasound that confirms the pregnancy .

"The gestational sac is a bag of water that assists and protects the baby in its development. From it, there will be the formation of the placenta and the amniotic sac," according to the gynecologist and obstetrician Dr. Fernanda Pepicelli from the MedPrimus Clinic.

This structure is fundamental for the first moments of the fetus, since it shelters the embryo before the development of the placenta and the amniotic sac, which will protect it in the other stages of pregnancy. It is possible to observe and identify the gestational sac from the fourth week of pregnancy.

"Part of the gestational sac is the yolk sac, which temporarily carries blood and oxygen to the baby, and is also responsible for its nutrition," explains the obstetric nurse Cinthia Calsinski .

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The gestational sac can have complications

A structure as important as this, however, is not completely safe from complications. The main one is the empty gestational sac: after the sixth week of gestation, we should find the presence of the embryo inside, but if it is not found, this is considered to be an anembryonic gestation - when the embryo does not develop after the fertilization .

"In general, this gestation moves towards a spontaneous loss But sometimes this does not occur, and a procedure called amiu or even a curettage is necessary."

Finally, placental displacement is also a common condition involving the gestational sac. In this case, the woman has bleeding, forming a hematoma in the sac, or even gets vaginal bleeding. "Follow-up with relative rest is enough to 'treat' this condition," says Fernanda. "If we locate the cause of the problem, we can also treat it, for example, decreasedprogesterone, thyroid hormone alteration and high blood pressure ."